"set pixel on screen" Code Answer's
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set pixel on screen
COLORREF *arr = (COLORREF*) calloc(512*512, sizeof(COLORREF));
/* Filling array here */
/* ... */
// Creating temp bitmap
HBITMAP map = CreateBitmap(512 // width. 512 in my case
512, // height
1, // Color Planes, unfortanutelly don't know what is it actually. Let it be 1
8*4, // Size of memory for one pixel in bits (in win32 4 bytes = 4*8 bits)
(void*) arr); // pointer to array
// Temp HDC to copy picture
HDC src = CreateCompatibleDC(hdc); // hdc - Device context for window, I've got earlier with GetDC(hWnd) or GetDC(NULL);
SelectObject(src, map); // Inserting picture into our temp HDC
// Copy image from temp HDC to window
BitBlt(hdc, // Destination
10, // x and
10, // y - upper-left corner of place, where we'd like to copy
512, // width of the region
512, // height
src, // source
0, // x and
0, // y of upper left corner of part of the source, from where we'd like to copy
SRCCOPY); // Defined DWORD to juct copy pixels. Watch more on msdn;
DeleteDC(src); // Deleting temp HDC
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